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75483MARKET INTERVENTION27/04/2020 02:07:36 PM
Possible intervention to manage power system security in South Australia (SA) Region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units expected to be synchronised in SA from 0230 hrs 28/04/2020 to 0400 hrs 29/04/2020 in Pre-dispatch published at 1400 hrs 27/04/2020 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 1700 hrs 27/04/2020, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units expected to be synchronised in SA from 0230 hrs 28/04/2020 to 0400 hrs 29/04/2020 in Pre-dispatch published at 1400 hrs 27/04/2020 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 1700 hrs 27/04/2020, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
75482CONSTRAINTS27/04/2020 12:59:44 PM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 75226
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland. A revision to the requirements will be implemented at 1400 hrs today.
The revised minimum generator combinations and limits are:
1 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya, 2 x Barron Gorge: 100% output
2 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya, 1 x Barron Gorge: 80% output
3 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Townsville GT: 80% output
4 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Barron Gorge: 70% output
4H - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Barron Gorge, 50% or less output at Mt Emerald: 100% output for Haughton solar farm
5 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya: 70% output
The following new combination will also be implemented:
6- 3 x Stanwell, 2 x Callide C, 3 x Gladstone, 9 x Total Stanwell+Callide+Gladstone, 4 x Kareeya: 20% output
If these combinations are not met, Mt Emerald WF, Sun metals SF and Haughton SF have a limit of 0 MW and 0 inverters.
The constraint equations are: Q_NIL_STRGTH_MEWF, Q_NIL_STRGTH_HAUSF, Q_NIL_STRGTH_SMSF.
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Mya San
AEMO Operations
Refer to market notice 75226
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland. A revision to the requirements will be implemented at 1400 hrs today.
The revised minimum generator combinations and limits are:
1 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya, 2 x Barron Gorge: 100% output
2 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya, 1 x Barron Gorge: 80% output
3 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Townsville GT: 80% output
4 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Barron Gorge: 70% output
4H - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Barron Gorge, 50% or less output at Mt Emerald: 100% output for Haughton solar farm
5 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya: 70% output
The following new combination will also be implemented:
6- 3 x Stanwell, 2 x Callide C, 3 x Gladstone, 9 x Total Stanwell+Callide+Gladstone, 4 x Kareeya: 20% output
If these combinations are not met, Mt Emerald WF, Sun metals SF and Haughton SF have a limit of 0 MW and 0 inverters.
The constraint equations are: Q_NIL_STRGTH_MEWF, Q_NIL_STRGTH_HAUSF, Q_NIL_STRGTH_SMSF.
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Mya San
AEMO Operations
75481INTER-REGIONAL TRANSFER27/04/2020 05:55:45 AM
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.2 500 kV Line (Vic) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Refer AEMO Electricity Market Notice 75472
The Hazelwood - South Morang No.2 500 kV Line has been returned to service.
The following constraint set was revoked at 0555 hrs 27/04/2020.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
Refer AEMO Electricity Market Notice 75472
The Hazelwood - South Morang No.2 500 kV Line has been returned to service.
The following constraint set was revoked at 0555 hrs 27/04/2020.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
75480MARKET INTERVENTION26/04/2020 03:30:22 PM
Cancellation: AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 24/04/2020
AEMO ELECTRICITY MARKET NOTICE
Refer Market Notice 75468
The AEMO Intervention Event and all associated directions are cancelled from 1500 hrs 26/04/2020.
Manager NEM Real Time Operation
Refer Market Notice 75468
The AEMO Intervention Event and all associated directions are cancelled from 1500 hrs 26/04/2020.
Manager NEM Real Time Operation
75478NON-CONFORMANCE26/04/2020 03:00:24 AM
NON-CONFORMANCE Region NSW1 Sunday, 26 April 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Sunday, 26 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: VP5
Duration: 26/04/2020 02:55 to 26/04/2020 03:00
Amount: -30 MW
Constraint: NC-N_VP5
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Sunday, 26 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: VP5
Duration: 26/04/2020 02:55 to 26/04/2020 03:00
Amount: -30 MW
Constraint: NC-N_VP5
Auto-generated on behalf of Manager NEM Real Time Operations
75476NON-CONFORMANCE25/04/2020 01:30:32 PM
NON-CONFORMANCE Region VIC1 Saturday, 25 April 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE VIC1 Region Saturday, 25 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: WEMENSF1
Duration: 25/04/2020 13:20 to 25/04/2020 13:30
Amount: 58 MW
Constraint: NC-V_WEMENSF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE VIC1 Region Saturday, 25 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: WEMENSF1
Duration: 25/04/2020 13:20 to 25/04/2020 13:30
Amount: 58 MW
Constraint: NC-V_WEMENSF1
Auto-generated on behalf of Manager NEM Real Time Operations
75475NON-CONFORMANCE25/04/2020 11:55:17 AM
NON-CONFORMANCE Region NSW1 Saturday, 25 April 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Saturday, 25 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: GULLRWF1
Duration: 25/04/2020 11:50 to 25/04/2020 11:55
Amount: 66 MW
Constraint: NC-N_GULLRWF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Saturday, 25 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: GULLRWF1
Duration: 25/04/2020 11:50 to 25/04/2020 11:55
Amount: 66 MW
Constraint: NC-N_GULLRWF1
Auto-generated on behalf of Manager NEM Real Time Operations
75474NON-CONFORMANCE25/04/2020 11:20:23 AM
NON-CONFORMANCE Region NSW1 Saturday, 25 April 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Saturday, 25 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: GULLRWF1
Duration: 25/04/2020 09:55 to 25/04/2020 11:20
Amount: 48 MW
Constraint: NC-N_GULLRWF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Saturday, 25 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: GULLRWF1
Duration: 25/04/2020 09:55 to 25/04/2020 11:20
Amount: 48 MW
Constraint: NC-N_GULLRWF1
Auto-generated on behalf of Manager NEM Real Time Operations
75473NON-CONFORMANCE25/04/2020 11:15:19 AM
NON-CONFORMANCE Region NSW1 Saturday, 25 April 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Saturday, 25 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: WRSF1
Duration: 25/04/2020 11:00 to 25/04/2020 11:15
Amount: 16 MW
Constraint: NC-N_WRSF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Saturday, 25 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: WRSF1
Duration: 25/04/2020 11:00 to 25/04/2020 11:15
Amount: 16 MW
Constraint: NC-N_WRSF1
Auto-generated on behalf of Manager NEM Real Time Operations